== sanity test 398c: run fio to test AIO ================= 10:33:47 (1790778827) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.54064 s, 77.6 MB/s osc.lustre-OST0000-osc-ffff96d0adb4d000.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=180862: Wed Sep 30 10:34:22 2026 write: IOPS=103, BW=414KiB/s (424kB/s)(10.0MiB/24722msec); 0 zone resets slat (usec): min=23, max=13288, avg=161.27, stdev=596.87 clat (msec): min=24, max=313, avg=154.20, stdev=38.41 lat (msec): min=25, max=313, avg=154.36, stdev=38.41 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 124], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 182], 90.00th=[ 207], 95.00th=[ 228], | 99.00th=[ 264], 99.50th=[ 288], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 239, max= 512, per=25.05%, avg=412.51, stdev=70.71, samples=49 iops : min= 59, max= 128, avg=102.82, stdev=17.67, samples=49 lat (msec) : 50=0.08%, 100=4.53%, 250=93.48%, 500=1.91% cpu : usr=0.20%, sys=1.05%, ctx=2508, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=180863: Wed Sep 30 10:34:22 2026 write: IOPS=102, BW=412KiB/s (422kB/s)(10.0MiB/24856msec); 0 zone resets slat (usec): min=23, max=12557, avg=148.56, stdev=485.65 clat (msec): min=73, max=315, avg=154.27, stdev=38.92 lat (msec): min=73, max=315, avg=154.42, stdev=38.92 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 101], 10.00th=[ 113], 20.00th=[ 123], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 157], | 70.00th=[ 169], 80.00th=[ 184], 90.00th=[ 207], 95.00th=[ 228], | 99.00th=[ 275], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 253, max= 520, per=24.92%, avg=410.37, stdev=79.09, samples=49 iops : min= 63, max= 130, avg=102.29, stdev=19.77, samples=49 lat (msec) : 100=4.88%, 250=93.09%, 500=2.03% cpu : usr=0.14%, sys=0.96%, ctx=2144, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=180864: Wed Sep 30 10:34:22 2026 write: IOPS=103, BW=412KiB/s (422kB/s)(10.0MiB/24854msec); 0 zone resets slat (usec): min=23, max=11824, avg=155.32, stdev=516.45 clat (msec): min=27, max=294, avg=154.35, stdev=38.59 lat (msec): min=27, max=294, avg=154.51, stdev=38.59 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 124], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 169], 80.00th=[ 184], 90.00th=[ 205], 95.00th=[ 228], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 223, max= 520, per=24.88%, avg=409.69, stdev=75.78, samples=49 iops : min= 55, max= 130, avg=102.10, stdev=18.96, samples=49 lat (msec) : 50=0.16%, 100=4.10%, 250=93.55%, 500=2.19% cpu : usr=0.16%, sys=0.87%, ctx=2494, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=180865: Wed Sep 30 10:34:22 2026 write: IOPS=103, BW=412KiB/s (422kB/s)(10.0MiB/24835msec); 0 zone resets slat (usec): min=23, max=12984, avg=156.68, stdev=547.10 clat (msec): min=18, max=298, avg=154.30, stdev=38.69 lat (msec): min=18, max=298, avg=154.46, stdev=38.68 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 103], 10.00th=[ 113], 20.00th=[ 123], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 182], 90.00th=[ 205], 95.00th=[ 232], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 254, max= 608, per=24.95%, avg=410.86, stdev=69.04, samples=49 iops : min= 63, max= 152, avg=102.41, stdev=17.28, samples=49 lat (msec) : 20=0.08%, 50=0.08%, 100=4.22%, 250=93.48%, 500=2.15% cpu : usr=0.14%, sys=0.99%, ctx=2507, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): WRITE: bw=1648KiB/s (1687kB/s), 412KiB/s-414KiB/s (422kB/s-424kB/s), io=40.0MiB (41.9MB), run=24722-24856msec 0% of I/O are 1-page (PAGE_SIZE=4096), max 50% mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=180879: Wed Sep 30 10:34:57 2026 read: IOPS=48, BW=192KiB/s (197kB/s)(5048KiB/26279msec) slat (usec): min=36, max=50771, avg=11743.41, stdev=6766.78 clat (msec): min=49, max=288, avg=154.90, stdev=38.07 lat (msec): min=58, max=321, avg=166.65, stdev=39.77 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 100], 10.00th=[ 109], 20.00th=[ 122], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 205], 95.00th=[ 226], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 106, max= 319, per=25.09%, avg=191.42, stdev=41.22, samples=52 iops : min= 26, max= 79, avg=47.40, stdev=10.29, samples=52 write: IOPS=49, BW=198KiB/s (202kB/s)(5192KiB/26279msec); 0 zone resets slat (usec): min=24, max=26674, avg=207.87, stdev=971.87 clat (msec): min=77, max=299, avg=159.72, stdev=37.14 lat (msec): min=77, max=299, avg=159.92, stdev=37.16 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 127], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 211], 95.00th=[ 226], | 99.00th=[ 255], 99.50th=[ 266], 99.90th=[ 284], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 115, max= 288, per=24.86%, avg=197.38, stdev=41.99, samples=52 iops : min= 28, max= 72, avg=48.90, stdev=10.54, samples=52 lat (msec) : 50=0.04%, 100=4.53%, 250=93.95%, 500=1.48% cpu : usr=0.21%, sys=1.77%, ctx=4122, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180880: Wed Sep 30 10:34:57 2026 read: IOPS=47, BW=190KiB/s (195kB/s)(4976KiB/26154msec) slat (usec): min=2260, max=48715, avg=11456.94, stdev=6431.77 clat (msec): min=20, max=285, avg=153.54, stdev=38.03 lat (msec): min=27, max=301, avg=165.01, stdev=39.37 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 97], 10.00th=[ 106], 20.00th=[ 120], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 205], 95.00th=[ 224], | 99.00th=[ 253], 99.50th=[ 262], 99.90th=[ 275], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 42, max= 327, per=24.90%, avg=190.02, stdev=45.44, samples=51 iops : min= 10, max= 81, avg=47.06, stdev=11.34, samples=51 write: IOPS=50, BW=201KiB/s (206kB/s)(5264KiB/26154msec); 0 zone resets slat (usec): min=23, max=36706, avg=215.09, stdev=1148.58 clat (msec): min=82, max=278, avg=159.08, stdev=34.71 lat (msec): min=82, max=278, avg=159.29, stdev=34.73 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 107], 10.00th=[ 117], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 249], 99.50th=[ 257], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 91, max= 280, per=25.41%, avg=201.75, stdev=41.71, samples=51 iops : min= 22, max= 70, avg=50.00, stdev=10.45, samples=51 lat (msec) : 50=0.04%, 100=4.69%, 250=94.18%, 500=1.09% cpu : usr=0.25%, sys=2.04%, ctx=3890, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180881: Wed Sep 30 10:34:57 2026 read: IOPS=47, BW=191KiB/s (195kB/s)(4984KiB/26111msec) slat (usec): min=33, max=46368, avg=11619.12, stdev=6750.74 clat (msec): min=32, max=278, avg=154.80, stdev=38.27 lat (msec): min=57, max=304, avg=166.43, stdev=39.77 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 97], 10.00th=[ 108], 20.00th=[ 122], | 30.00th=[ 132], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 224], | 99.00th=[ 259], 99.50th=[ 264], 99.90th=[ 275], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 127, max= 295, per=25.09%, avg=191.41, stdev=38.31, samples=51 iops : min= 31, max= 73, avg=47.41, stdev= 9.57, samples=51 write: IOPS=50, BW=201KiB/s (206kB/s)(5256KiB/26111msec); 0 zone resets slat (usec): min=23, max=13010, avg=201.22, stdev=733.51 clat (msec): min=46, max=332, avg=159.31, stdev=37.58 lat (msec): min=46, max=332, avg=159.51, stdev=37.57 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 106], 10.00th=[ 115], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 259], 99.50th=[ 279], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 104, max= 319, per=25.34%, avg=201.20, stdev=46.08, samples=51 iops : min= 26, max= 79, avg=49.88, stdev=11.49, samples=51 lat (msec) : 50=0.16%, 100=4.88%, 250=93.67%, 500=1.29% cpu : usr=0.31%, sys=1.75%, ctx=3907, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180882: Wed Sep 30 10:34:57 2026 read: IOPS=48, BW=192KiB/s (197kB/s)(5060KiB/26287msec) slat (usec): min=53, max=59689, avg=11755.03, stdev=6680.86 clat (msec): min=21, max=281, avg=154.85, stdev=37.66 lat (msec): min=32, max=332, avg=166.61, stdev=39.09 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 102], 10.00th=[ 110], 20.00th=[ 123], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 226], | 99.00th=[ 253], 99.50th=[ 259], 99.90th=[ 279], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 86, max= 295, per=25.17%, avg=192.04, stdev=40.82, samples=52 iops : min= 21, max= 73, avg=47.58, stdev=10.15, samples=52 write: IOPS=49, BW=197KiB/s (202kB/s)(5180KiB/26287msec); 0 zone resets slat (usec): min=23, max=11034, avg=173.97, stdev=533.23 clat (msec): min=47, max=292, avg=159.89, stdev=36.11 lat (msec): min=53, max=292, avg=160.07, stdev=36.08 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 106], 10.00th=[ 114], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 222], | 99.00th=[ 253], 99.50th=[ 264], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 100, max= 311, per=24.63%, avg=195.58, stdev=43.69, samples=52 iops : min= 25, max= 77, avg=48.46, stdev=10.92, samples=52 lat (msec) : 50=0.08%, 100=3.79%, 250=94.92%, 500=1.21% cpu : usr=0.33%, sys=1.97%, ctx=3930, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=763KiB/s (782kB/s), 190KiB/s-192KiB/s (195kB/s-197kB/s), io=19.6MiB (20.5MB), run=26111-26287msec WRITE: bw=795KiB/s (814kB/s), 197KiB/s-201KiB/s (202kB/s-206kB/s), io=20.4MiB (21.4MB), run=26111-26287msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=180891: Wed Sep 30 10:35:05 2026 read: IOPS=2, BW=98.0MiB/s (103MB/s)(40.0MiB/408msec) slat (nsec): min=28969k, max=28969k, avg=28969046.00, stdev= 0.00 clat (nsec): min=367358k, max=367358k, avg=367357811.00, stdev= 0.00 lat (nsec): min=396332k, max=396332k, avg=396331979.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.21%, ctx=7, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=98.0MiB/s (103MB/s), 98.0MiB/s-98.0MiB/s (103MB/s-103MB/s), io=40.0MiB (41.9MB), run=408-408msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout